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  <div class="headertitle"><div class="title">MOEAD.h</div></div>
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<a href="_m_o_e_a_d_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">//===========================================================================</span><span class="comment"></span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">/*!</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * \brief       Implements the MOEA/D algorithm.</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> *</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * \author      Bjoern Bugge Grathwohl</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> * \date        February 2017</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> * \par Copyright 1995-2017 Shark Development Team</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> *</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * &lt;BR&gt;&lt;HR&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * This file is part of Shark.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * &lt;https://shark-ml.github.io/Shark/&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> *</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * Shark is free software: you can redistribute it and/or modify</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as published</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> * by the Free Software Foundation, either version 3 of the License, or</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> *</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * Shark is distributed in the hope that it will be useful,</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> * GNU Lesser General Public License for more details.</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment"> *</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> * along with Shark.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment"> *</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment"> */</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">//===========================================================================</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="preprocessor">#ifndef SHARK_ALGORITHMS_DIRECT_SEARCH_MOEAD</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#define SHARK_ALGORITHMS_DIRECT_SEARCH_MOEAD</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#include &lt;<a class="code" href="_d_l_l_support_8h.html">shark/Core/DLLSupport.h</a>&gt;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#include &lt;<a class="code" href="_abstract_multi_objective_optimizer_8h.html">shark/Algorithms/AbstractMultiObjectiveOptimizer.h</a>&gt;</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor">#include &lt;<a class="code" href="_individual_8h.html">shark/Algorithms/DirectSearch/Individual.h</a>&gt;</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#include &lt;<a class="code" href="_simulated_binary_crossover_8h.html">shark/Algorithms/DirectSearch/Operators/Recombination/SimulatedBinaryCrossover.h</a>&gt;</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#include &lt;<a class="code" href="_polynomial_mutation_8h.html">shark/Algorithms/DirectSearch/Operators/Mutation/PolynomialMutation.h</a>&gt;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="preprocessor">#include &lt;<a class="code" href="_lattice_8h.html">shark/Algorithms/DirectSearch/Operators/Lattice.h</a>&gt;</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceshark.html" title="AbstractMultiObjectiveOptimizer.">shark</a> {</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"></span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment">/// \brief Implements the MOEA/D algorithm.</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment">///</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment">/// Implementation of the MOEA/D algorithm from the following paper:</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment">/// Q. Zhang and H. Li, MOEA/D: a multi-objective evolutionary algorithm based</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment">/// on decomposition, IEEE Transactions on Evolutionary Computation, vol. 11,</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment">/// no. 6, pp. 712 - 731, 2007</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment">/// DOI: 10.1109/TEVC.2007.892759</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment">/// \ingroup multidirect</span></div>
<div class="foldopen" id="foldopen00052" data-start="{" data-end="};">
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html">   52</a></span><span class="comment"></span><span class="keyword">class </span><a class="code hl_class" href="classshark_1_1_m_o_e_a_d.html" title="Implements the MOEA/D algorithm.">MOEAD</a> : <span class="keyword">public</span> <a class="code hl_class" href="classshark_1_1_abstract_multi_objective_optimizer.html" title="base class for abstract multi-objective optimizers for arbitrary search spaces.">AbstractMultiObjectiveOptimizer</a>&lt;RealVector&gt;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>{</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="keyword">public</span>:</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a26b14cfa87bf47238663a65a50b00c47">   55</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a26b14cfa87bf47238663a65a50b00c47">MOEAD</a>(random::rng_type &amp; rng = <a class="code hl_variable" href="namespaceshark_1_1random.html#ab5c1547eee483974d008d43f621a2234">random::globalRng</a>);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
<div class="foldopen" id="foldopen00057" data-start="{" data-end="}">
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a2b5b69dd7e785191c1d01eb5496916be">   57</a></span>    std::string <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a2b5b69dd7e785191c1d01eb5496916be" title="returns the name of the object">name</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>        <span class="keywordflow">return</span> <span class="stringliteral">&quot;MOEA/D&quot;</span>;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    }</div>
</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span> </div>
<div class="foldopen" id="foldopen00061" data-start="{" data-end="}">
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a31e982735b8a679e0deec45afe631141">   61</a></span>    <span class="keywordtype">double</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a31e982735b8a679e0deec45afe631141">crossoverProbability</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>        <span class="keywordflow">return</span> m_crossoverProbability;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    }</div>
</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span> </div>
<div class="foldopen" id="foldopen00065" data-start="{" data-end="}">
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#af11e76b68782f21eed8dd2a22a60eae6">   65</a></span>    <span class="keywordtype">double</span> &amp; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#af11e76b68782f21eed8dd2a22a60eae6">crossoverProbability</a>(){</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>        <span class="keywordflow">return</span> m_crossoverProbability;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    }</div>
</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span> </div>
<div class="foldopen" id="foldopen00069" data-start="{" data-end="}">
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a3f30f20235cad8c090c996f06398e6a3">   69</a></span>    <span class="keywordtype">double</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a3f30f20235cad8c090c996f06398e6a3">nm</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>        <span class="keywordflow">return</span> m_mutation.<a class="code hl_variable" href="structshark_1_1_polynomial_mutator.html#ab716ed21beacc4501deaadeca839819a">m_nm</a>;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    }</div>
</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span> </div>
<div class="foldopen" id="foldopen00073" data-start="{" data-end="}">
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#ace2a4fd5bb0b4c0426b58167382644d5">   73</a></span>    <span class="keywordtype">double</span> &amp; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ace2a4fd5bb0b4c0426b58167382644d5">nm</a>(){</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>        <span class="keywordflow">return</span> m_mutation.<a class="code hl_variable" href="structshark_1_1_polynomial_mutator.html#ab716ed21beacc4501deaadeca839819a">m_nm</a>;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    }</div>
</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span> </div>
<div class="foldopen" id="foldopen00077" data-start="{" data-end="}">
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#ae81d1faf004522e82778f081d6154e4c">   77</a></span>    <span class="keywordtype">double</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae81d1faf004522e82778f081d6154e4c">nc</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>        <span class="keywordflow">return</span> m_crossover.<a class="code hl_variable" href="structshark_1_1_simulated_binary_crossover.html#a9527780aa1750e443053a5d982ae7f13" title="Parameter nc.">m_nc</a>;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>    }</div>
</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span> </div>
<div class="foldopen" id="foldopen00081" data-start="{" data-end="}">
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#af61a24b3333312acd8d86348fe07768c">   81</a></span>    <span class="keywordtype">double</span> &amp; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#af61a24b3333312acd8d86348fe07768c">nc</a>(){</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>        <span class="keywordflow">return</span> m_crossover.<a class="code hl_variable" href="structshark_1_1_simulated_binary_crossover.html#a9527780aa1750e443053a5d982ae7f13" title="Parameter nc.">m_nc</a>;</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    }</div>
</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span> </div>
<div class="foldopen" id="foldopen00085" data-start="{" data-end="}">
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#ae2ec88daa05a1730409085ac48ddc456">   85</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae2ec88daa05a1730409085ac48ddc456">mu</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>        <span class="keywordflow">return</span> m_mu;</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    }</div>
</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span> </div>
<div class="foldopen" id="foldopen00089" data-start="{" data-end="}">
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a1a09e676b012cac6212059065ed40f65">   89</a></span>    std::size_t &amp; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a1a09e676b012cac6212059065ed40f65">mu</a>(){</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>        <span class="keywordflow">return</span> m_mu;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>    }</div>
</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    <span class="comment"></span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment">    /// \brief The number of points used for initialization of the algorithm.</span></div>
<div class="foldopen" id="foldopen00094" data-start="{" data-end="}">
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a00bf3f40f13536690b0e17fe582bf55b">   94</a></span><span class="comment"></span>    std::size_t <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a00bf3f40f13536690b0e17fe582bf55b" title="The number of points used for initialization of the algorithm.">numInitPoints</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>        <span class="keywordflow">return</span> m_mu;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>    }</div>
</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span> </div>
<div class="foldopen" id="foldopen00098" data-start="{" data-end="}">
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#ae8479a8c17ddb1987ac40847826e09cf">   98</a></span>    std::size_t <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae8479a8c17ddb1987ac40847826e09cf">neighbourhoodSize</a>()<span class="keyword"> const</span>{</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>        <span class="keywordflow">return</span> m_neighbourhoodSize;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>    }</div>
</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span> </div>
<div class="foldopen" id="foldopen00102" data-start="{" data-end="}">
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a4773c5fb86bccb84e5a5a7a0ec7ee83a">  102</a></span>    std::size_t &amp; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a4773c5fb86bccb84e5a5a7a0ec7ee83a">neighbourhoodSize</a>(){</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>        <span class="keywordflow">return</span> m_neighbourhoodSize;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>    }</div>
</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Archive&gt;</div>
<div class="foldopen" id="foldopen00107" data-start="{" data-end="}">
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a70d1d8439f58bdccb47cff91cc056e61">  107</a></span>    <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a70d1d8439f58bdccb47cff91cc056e61">serialize</a>(Archive &amp; archive)</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>    {</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_crossoverProbability);</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_mu);</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>        archive &amp; BOOST_SERIALIZATION_NVP(<a class="code hl_variable" href="classshark_1_1_m_o_e_a_d.html#adeda7be6f7eaa47e96721438a177ffc5">m_parents</a>);</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>        archive &amp; BOOST_SERIALIZATION_NVP(<a class="code hl_variable" href="classshark_1_1_abstract_multi_objective_optimizer.html#ac4e394bda4b2442031f851c742a83eaa" title="The current Pareto-set/-front.">m_best</a>);</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_weights);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_neighbourhoods);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_neighbourhoodSize);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_bestDecomposedValues);</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_crossover);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_mutation);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>        archive &amp; BOOST_SERIALIZATION_NVP(m_curParentIndex);</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>    }</div>
</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>    <span class="keyword">using </span><a class="code hl_class" href="classshark_1_1_abstract_multi_objective_optimizer.html" title="base class for abstract multi-objective optimizers for arbitrary search spaces.">AbstractMultiObjectiveOptimizer</a>&lt;RealVector &gt;<a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#aacef82f9dfcce8e69cc472eb62ca63a2">::init</a>;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#aacef82f9dfcce8e69cc472eb62ca63a2">  123</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#aacef82f9dfcce8e69cc472eb62ca63a2">init</a>(</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>        <a class="code hl_class" href="classshark_1_1_abstract_objective_function.html" title="Super class of all objective functions for optimization and learning.">ObjectiveFunctionType</a> <span class="keyword">const</span>&amp; function,</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>        std::vector&lt;SearchPointType&gt; <span class="keyword">const</span> &amp; initialSearchPoints</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    );</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a8742c5129a512cc1840c738457cac095">  127</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a8742c5129a512cc1840c738457cac095">step</a>(<a class="code hl_class" href="classshark_1_1_abstract_objective_function.html" title="Super class of all objective functions for optimization and learning.">ObjectiveFunctionType</a> <span class="keyword">const</span> &amp; function);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="keyword">protected</span>:</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a43d6f645e0cf4994581301ab8cf868d6">  129</a></span>    <span class="keyword">typedef</span> <a class="code hl_class" href="classshark_1_1_individual.html" title="Individual is a simple templated class modelling an individual that acts as a candidate solution in a...">shark::Individual&lt;RealVector, RealVector&gt;</a> <a class="code hl_typedef" href="classshark_1_1_m_o_e_a_d.html#a43d6f645e0cf4994581301ab8cf868d6">IndividualType</a>;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#a10fd13169143de87c9d9d5650851dab0">  130</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a10fd13169143de87c9d9d5650851dab0">doInit</a>(</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>        std::vector&lt;SearchPointType&gt; <span class="keyword">const</span> &amp; initialSearchPoints,</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>        std::vector&lt;ResultType&gt; <span class="keyword">const</span> &amp; functionValues,</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>        RealVector <span class="keyword">const</span> &amp; lowerBounds,</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>        RealVector <span class="keyword">const</span> &amp; upperBounds,</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>        std::size_t <span class="keyword">const</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae2ec88daa05a1730409085ac48ddc456">mu</a>,</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>        <span class="keywordtype">double</span> <span class="keyword">const</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#a3f30f20235cad8c090c996f06398e6a3">nm</a>,</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>        <span class="keywordtype">double</span> <span class="keyword">const</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae81d1faf004522e82778f081d6154e4c">nc</a>,</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>        <span class="keywordtype">double</span> <span class="keyword">const</span> crossover_prob,</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>        std::size_t <span class="keyword">const</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#ae8479a8c17ddb1987ac40847826e09cf">neighbourhoodSize</a>,</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>        std::vector&lt;Preference&gt; <span class="keyword">const</span> &amp; weightVectorPreferences = std::vector&lt;Preference&gt;()</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>    );</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>    <span class="comment">// Make me an offspring...</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#aa78fc336dfe961a9bff5c72715f0a49d">  143</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> std::vector&lt;IndividualType&gt; <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#aa78fc336dfe961a9bff5c72715f0a49d">generateOffspring</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#abb977a5f4b6e06643778e3082b31d350">  144</a></span>    <a class="code hl_define" href="_d_l_l_support_8h.html#a54b73283f7f70b27fbd8ac5d4621827f" title="Defines SHARK_COMPILE_DLL.">SHARK_EXPORT_SYMBOL</a> <span class="keywordtype">void</span> <a class="code hl_function" href="classshark_1_1_m_o_e_a_d.html#abb977a5f4b6e06643778e3082b31d350">updatePopulation</a>(std::vector&lt;IndividualType&gt; <span class="keyword">const</span> &amp; offspringvec);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"><a class="line" href="classshark_1_1_m_o_e_a_d.html#adeda7be6f7eaa47e96721438a177ffc5">  146</a></span>    std::vector&lt;IndividualType&gt; <a class="code hl_variable" href="classshark_1_1_m_o_e_a_d.html#adeda7be6f7eaa47e96721438a177ffc5">m_parents</a>;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span> </div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>    random::rng_type * mpe_rng;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>    <span class="keywordtype">double</span> m_crossoverProbability; <span class="comment">///&lt; Probability of crossover happening.</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>    std::size_t m_mu; <span class="comment">///&lt; Size of parent population and the &quot;N&quot; from the paper</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>    std::size_t m_curParentIndex;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"></span> </div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">    /// \brief Number of neighbours for each candidate to consider.</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment">    ///</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment">    /// This is the &quot;T&quot; from the paper.</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"></span>    std::size_t m_neighbourhoodSize;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>    RealMatrix m_weights; <span class="comment">///&lt; The weight vectors. These are all the lambdas from the paper</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>    <span class="comment"></span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment">    /// \brief Row n stores the indices of the T closest weight vectors. </span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment">    ///</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment">    /// This is the &quot;B&quot; function from the paper.</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"></span>    UIntMatrix m_neighbourhoods; </div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>    RealVector m_bestDecomposedValues; <span class="comment">///&lt; The &quot;z&quot; from the paper.</span></div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span> </div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>    <a class="code hl_struct" href="structshark_1_1_simulated_binary_crossover.html" title="Simulated binary crossover operator.">SimulatedBinaryCrossover&lt;SearchPointType&gt;</a> m_crossover;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    <a class="code hl_struct" href="structshark_1_1_polynomial_mutator.html" title="Polynomial mutation operator.">PolynomialMutator</a> m_mutation;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>};</div>
</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span> </div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span> </div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>} <span class="comment">// namespace shark</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="preprocessor">#endif </span><span class="comment">// SHARK_ALGORITHMS_DIRECT_SEARCH_MOEAD</span></div>
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